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US 5,665,337 AGranted
Low residue hair care compositions using grafted copolymers
AssigneeThe Procter & Gamble Company
InventorsJose Antonio Carballada, Lauren Ann Thaman
Life of this patent
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Abstract
The present invention relates to rinse-off hair care compositions which provide styling and hair conditioning properties without the formation of a non-removable residue. The compositions comprise from about 0.25% to about 70% of a copolymer component comprising from about 1.5% to about 70% of a silicone-grafted adhesive hair styling copolymer having a weight average molecular weight from about 300,000 to about 5,000,000 and from about 30% to about 98.5% of a hydrophobic volatile solvent.
Claims34
A rinse-off hair care composition comprising:
- A. from about 0.25% to about 70%, by weight of the rinse-off hair care composition, of a copolymer component comprising:
- i. from about 1.5% to about 70%, by weight of said copolymer component, of a silicone-grained adhesive hair styling copolymer having a weight average molecular weight from about 300,000 to about 5,000,000, which has a vinyl polymeric backbone having grafted to it monovalent siloxane polymeric moieties, said copolymer comprising monomers selected from the group consisting of A monomers, B monomers, C monomers and mixtures thereof;
- wherein the weight percent of said copolymer in said rinse-off hair care composition is from about 0.10% to about 7%;
- and wherein said copolymer is prepared by the polymerization combination of the following relative weight percentages of said A monomers, said B monomers, and said C monomers:
- a. from about 45% to about 85%, by weight of said copolymer, of a hydrophobic, vinyl A monomer, free radically copolymerizable with said B monomers and said C monomers;
- b. from 0% to about 5%, by weight of said copolymer, of a hydrophilic reinforcing B monomer, copolymerizable with said A monomer and said C monomer, said B monomer being selected from the group consisting of polar monomers and macromers and mixtures thereof;
- and
- c. from about 25% to about 50%, by weight of said copolymer, of a polysiloxane-containing C monomer, copolymerizable with said A monomer and said B monomer, said C monomer having a weight average molecular weight of from about 5,000 to about 13,000;
- and having the general formula:
- X(Y).sub.n Si(R).sub.3-m (Z).sub.m wherein:
- X is a vinyl group copolymerizable with said A monomers and said B monomers;
- Y is a divalent linking group;
- R is a hydrogen, lower alkyl, aryl or alkoxy;
- Z is a monovalent siloxane polymeric moiety having a number average molecular weight of at least about 1500, is essentially unreactive under copolymerization conditions, and is pendant from said vinyl polymeric backbone after polymerization;
- n is 0 or 1;
- and
- m is an integer from 1 to 3;
- and
- ii. from about 30% to about 98.5%, by weight of said copolymer component, of a hydrophobic volatile solvent;
- and
- B. from about 30% to about 99.75%, by weight of the rinse-off hair care composition, of a carrier suitable for application to hair, and wherein said rinse-off hair care composition has a residue index on hair of greater than about 20.
18 more elements
A rinse-off hair care composition comprising:
- A. from about 0.25% to about 70%, by weight of the rinse-off hair care composition, of a copolymer component comprising:
- i. from about 1.5% to about 70%, by weight of said copolymer component, of a silicone-grafted adhesive hair styling copolymer having a weight average molecular weight from about 300,000 to about 5,000,000, which has a vinyl polymeric backbone having grafted to it monovalent siloxane polymeric moieties, said copolymer comprising monomers selected from the group consisting of A monomers, B monomers, C monomers and mixtures thereof;
- wherein the weight percent of said copolymer in said rinse-off hair care composition is from about 0.10% to about 7%;
- and
- wherein said copolymer is prepared by the polymerization combination of the following relative weight percentages of said A monomers, said B monomers, and said C monomers:
- a. from about 45% to about 85%, by weight of said copolymer, of a hydrophobic, vinyl A monomer, free radically copolymerizable with said B monomers and said C monomers;
- b. from 0% to about 5%, by weight of said copolymer, of a hydrophilic, reinforcing B monomer, copolymerizable with said A monomer and said C monomer, said B monomer being selected from the group consisting of polar monomers and macromers and mixtures thereof;
- and
- c. from about 15% to about 50%, by weight of said copolymer, of a polysiloxane-containing C monomer, copolymerizable with said A monomer and said B monomer said C monomer having a weight average molecular weight of from about 13,000 to about 50,000;
- and having the general formula:
- X(Y).sub.n Si(R).sub.3-m (Z).sub.m wherein:
- X is a vinyl group copolymerizable with said A monomers and said B monomers;
- Y is a divalent linking group;
- R is a hydrogen, lower alkyl, aryl or alkoxy;
- Z is a monovalent siloxane polymeric moiety having a number average molecular weight of at least about 1500, is essentially unreactive under copolymerization conditions, and is pendant from said vinyl polymeric backbone after polymerization;
- n is 0 or 1;
- and
- m is an integer from 1 to 3;
- and
- ii. from about 30% to about 98.5%, by weight of said copolymer component, of a hydrophobic volatile solvent;
- and
- B. from about 30% to about 99.75%, by weight of the rinse-off hair care composition, of a carrier suitable for application to hair;
- and wherein said rinse-off hair care composition has a residue index on hair of greater than about 20.
20 more elements
Dependencies are inferred from the claim text.